#include <head.h>

int main(int argc, char const *argv[])
{
    FILE * fp = fopen("file2.txt" , "r");
    FOPEN_ERR(fp);  // 判断是否错误
    fseek(  fp , 0 , SEEK_END );
    long log;
    log = ftell(fp);
    printf("文件的字符数为%ld" , log);
    


    
    return 0;
}
